Electrodeposition of tungsten from EMPyrCl-ZnCl2 melts at 150ºC

Electrodeposition of tungsten from EMPyrCl-ZnCl2 melts at 150ºC

Electrodeposition of tungsten has been achieved at 150°C, which is the lowest temperature to this day, by using a new molten salt (ionic liquid), N-ethyl-N-methylpyrrolidinium chloride (EMPyrCl)-ZnCl2. Metallic tungsten was electrodeposited on a nickel substrate by potentiostatic electrolysis at 0.0...

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Veröffentlicht in:Transactions of the Materials Research Society of Japan 2010/03/01, Vol.35(1), pp.35-37
Hauptverfasser: Nohira, Toshiyuki, Kitagawa, Kan, Hagiwara, Rika, Nitta, Koji, Majima, Masatoshi, Inazawa, Shinji
Format: Artikel
Sprache:eng
Schlagworte:
electrodeposition
EMPyrCl
ionic liquid
molten salt
tungsten
ZnCl2
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Zusammenfassung:Electrodeposition of tungsten has been achieved at 150°C, which is the lowest temperature to this day, by using a new molten salt (ionic liquid), N-ethyl-N-methylpyrrolidinium chloride (EMPyrCl)-ZnCl2. Metallic tungsten was electrodeposited on a nickel substrate by potentiostatic electrolysis at 0.01 V vs. Zn(II)/Zn in an equimolar EMPyrCl-ZnCl2 melt after adding KF and WCl4. A denser and smoother tungsten film was obtained by the same electrolysis condition when WCl6 was used as a tungsten ion source.
ISSN:1382-3469
2188-1650
DOI:10.14723/tmrsj.35.35